Residential exposure to magnetic fields and acute lymphoblastic leukemia in children epidem.

Aim of study (acc. to author)

Further details

Endpoint/type of risk estimation

• childhood leukemia: acute lymphoblastic leukemia

Exposure

• • 50/60 Hz
  • magnetic field
• • power transmission line
• • residential

Assessment

• wire code: based on distance from the home of any overhead power lines within 45 m, the residence was classified in one of the five Wertheimer-Leeper categories and in one of the three categories of the Kaune-Savitz scheme
• measurement: 24-hour measurement in the child's bedroom; 30-second measurements in center of child's bedroom, family room, kitchen, bedroom of mother during pregnancy, and outdoor within 0.9 m of front door
• calculation: summary magnetic-field level from time-weighted average of room measurements

Exposure groups

Population

• Group:
  • children
• Age: 0–14 years
• Observation period: 1989 - 1994
• Study location: USA (Illinios, Indiana, Iowa, Michigan, Minnesota, New Jersey, Ohio, Pennsylvania, Wisconsin)

Case group

• Characteristics: children with acute lymphoblastic leukemia
• Data source: Children's Cancer Group
• Exclusion criteria: Down syndrome

Control group

• selected by random-digit telephone dialing
• Matching:
  • sex
  • age

Study size

Results (acc. to author)

Study funded by

• Children's Cancer Research Fund (at Cancer Center of University of Minnesota), USA
• National Cancer Institute (NCI; U.S. National Institutes of Health), Maryland, USA

Comments on this article

• Feychting M et al. (1998): Electromagnetic fields and childhood leukemia
• Campion EW (1997): Power lines, cancer, and fear
• Wartenberg D (1997): Leukemia and exposure to magnetic fields
• Stevens RG (1997): Leukemia and exposure to magnetic fields
• Gochfeld M (1997): Leukemia and exposure to magnetic fields
• Neutra RR (1997): Leukemia and exposure to magnetic fields
• Levallois P et al. (1997): Leukemia and exposure to magnetic fields
• Funk H (1997): Leukemia and exposure to magnetic fields
• Kabat GC (1997): Leukemia and exposure to magnetic fields

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